How to fix: "DOMException: HIERARCHY_REQUEST_ERR"

DOMException: HIERARCHY_REQUEST_ERR is an error that can occur when trying to access or modify a node in the DOM that doesn't exist. This error is thrown when the browser can't find the element that's being accessed or modified.

The HIERARCHY_REQUEST_ERR error can be caused by a number of things, including:

•The element being accessed or modified doesn't exist in the DOM.

•The element is located in a different part of the DOM than the one that's being accessed or modified.

•The element is located in a different DOM tree than the one that's being accessed or modified.

•The node being accessed or modified is in a different document than the one that's being accessed or modified.

The HIERARCHY_REQUEST_ERR error can also be caused by errors in the code that's trying to access or modify the element.

The following code sample shows how to create and throw a DOMException with the HIERARCHY_REQUEST_ERR error:

try {
    var elem = document.getElementById("myElem");
    } catch (e) {
    throw new DOMException("HIERARCHY_REQUEST_ERR", e);
}
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